Carriage-shifter and line-spacer for type-writers.



N0. 615L155 Patented Aug. l5, I899.

J. M. CRAMER. CARRIAGE SHIFTER AND LINE SPACER FOR TYPE WRITERS.

(Application filed Jan. 4-, 1899.) (No Model'.) 2 Sheets-Sheet l,

M/VENTOR A TTOHN'EYS.

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v No. 63!,l55. Patented Aug. I57, "3%..

-J.M. CRAMEB.

CABRIAGE SHIFTER AND LINE SPACER FOB TYPE WRITERS.

(Applics tion filed Jan. 4, 1899.)

(No Model.) 2 Sheets8heet 2,

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WITNESSES:

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NITEDG PATENT UFFIGE.

JAMES MILO ORA'MER, or SANTAMARQARITA, CALIFORNIAJ CARRIAGE-SHlF-TERANDLINE-S'PAC'VEREF'QR TYPE-w T RsQ sPEcIFIcA'rroN- formingpart of Lettes Patent No. 631,155, dated August 15, 1899'.

Application fild January 4,lssafserig uavolnos. on model) To all whom,it mayconcern:

Be it known that I JAMES MIL O CRAMER,

of Santa Margarita, in the county of San Luis Obispo and State of Oalifornia, have invented a new and Improved Carriage-Shifter and riage to itsinitial or starting position after being released bylpressing upon akey, and, further, to so place the devicethat it will not interfere withthe ordinary working of the, type-writer or materially change itsappearance, and, second, to provide a simple means operated by thecarriage for line-spacing.

I will describe a carriage-shifter and line--.

spacer for type-writers embodying my invention and then point out thenovel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar characters of reference indicate corresponding parts inall the views.

Figure 1 1s a rear elevation of a portion of a type-writer, showing myinvention as ap-' Fig. 2 is a side elevation of the Fig. 3 is asectional plan viewsub stantially on the 1ine-3 3 of Fig. 1. Fig. 4 isa,

plied thereto. same.

plan view showing a linespacin g mechanism.

Fig. 5 is a section on the line 5 5 of Fig. 4,

and Fig. 6 shows a shifter employed.

Referring to the drawings, 1 designates the frame of a type-writer ofthe usual or ordinary construction-such; for instance, asof theRemington type. The carriage comprises the rear bar 2, having rollers'3, which move upon the track 4, and extended forward from this rear baris a frame 5, inthe end members of which the impression-roller '6 hasjtsshaftbearings. h

A motor is arranged in the rear portion of the frame andbetween itslower portion and the top. This 'm'otor comprises a spring 7,' havingits inner end secured to a shaft 8, ex-

tended vertically'inthe frame and its op'posite or outer end connectedto. one end of a brake-regulating lever 9. The other end of thisbrake-regulating lever 9 has a linkconlongitudinally therein. ism andthe shaft are designed to wind the 1 spring, as will be hereinafterdescribed, and

nec tion 10;with brake-lever11, pivoted at I its opposite end to a stud12 on the base of the machine. portion 13, which bears upon an annularoutwardly-extended flange 14: on a gear-wheel y 15, securedto the shaft8. The object in securingone end of thespring 7 to the lever 9 is tocause the said spring to automatically 6o regulate the pressure of thebrake-lever on the flange 14 to compensate for the graduallydecreasingstrength of the spring power.

The gear-wheel l5 meshes with a pinion 16 on the vertical shaft 17, andon this shaft 17 65 is a beveLgear 18, adapted to be, engaged with abevel-gear 19 on a counter-shaft 20,

having bearings in the frame and movable This'gear mechanfor conveniencein turning the shaft 20 I pro-j vid'e its outer end with a crank 21.Also secured to the shaft 17 is a stop disk or wheel 22, having ashoulder 23 formed in its periphery and adapted to be engaged by thehook end 24: of a lever 25, fuicrumed on a hanger 26 and having itsopposite end apertured and therein engaged by a vertical member 27 of akey-lever28," pivoted in the base of the machine and having afinger-piece 29 extended upward through the keyboard. The lever 25 isheld yieldingly in engagement with the disk 22 by means of aspring 30,secured to the end of said lever and also secured to a 8 pin extended inthe frame of the type-writer, Mounted to move longitudinally of theshaft 17, but adapted to rotate therewith, as will be hereinafterdescribed, is a carriage-shifting pulley 31, which has a circumferencesubstantially equal to the length of movement required for the carriagein an ordinary length of line to be printed, so that one completerevolution of said pulley will return the carriage-to its initial orstarting position. end of a strap 32'is attached to this pulley 3l,

and the other end is attached toa depending portion 33 of an arm 34,extended outward from the rear bar 2 of thecarriage. Asbe- One 5 Thisbrake-lever 11 has a curved 55 v fore stated, this pulley 31 is of asize suffr- 10o ,cient to move the carriage the desired distance in theordinarylength of a line of printing. For shorter lines, however, theband 32 may be extended from the arm portion 33 to a smaller pulley 35,which is connected to the pulley 31.

In order to rotate the pulleys to take up the slack of the strap 32should it be desired to move the carriage manually to its initial orstarting position,l employ a ribbon-spring 36, secured at one end to thehub of the pulley 35 and at the other end to the frame of thetype-writer or to an upright 37 thereof. This spring 36 will be solightas not to interfere with the ordinary movement of the carriagetoward the left.

Attached to the pulley 31 is a clutch-section 38, adapted to engage witha clutch-section 39, secured to the shaft 17 or to the disk 22. Eachclutch-section has a single tooth adapted to engage one with the other,and the outer surfaces of the clutch-sections are spirally disposed fromthe teeth. The clutchsection 38 is provided with an annular channel, inwhich a yoke on the end of ashiftinglever 40 engages The saidshifting-lever 40 is connected to a short rock-shaft 41, mounted in theupright 37, and connected to this rockshaft 41 is an angle-arm. 42, thehorizontallydisposed portion of which is above the frame of thetype-writer and has a roller 43 journaled in its end and adapted to beengaged by a shoe 44, extended downward from the rear rail or bar 2 ofthe carriage and adj ustable thereon.

A lever 45 is pivoted to the frame of the type-writer and has anupwardly-extended member 46, having a notched end adapted to engagearound or partly around the counter-shaft 20 to hold said shaft 20 ineither of its adjusted positionsthat is, the shaft 20 may be held in itsinner position to engage the gear-wheel19 with the gear-wheel 18 bypressing down the lever and causing the said portion 46 of the lever toengage with the outer side of a collar 47, attached to the shaft, andthe shaft may be held in its outer position, as indicated in full linesin Fig. 1, byengaging the said portion 46 of the lever with the shaftand against the inner side of said collar 47. The lever 45 also has adownwardly-extended portion 48, adapted to engage with the free end ofthe brake-lever 11.

Arranged between the upright 37 and the lever 11 is a spring 49, thesaid spring being coiled around a pin 50, which extends from saidupright 37 loosely through an opening in the lever 11. This spring 49 isan expansion-spring, and its tendency is to relieve the pressure of thebrake-lever 11 on the flange 14 as the motor-spring 7 becomes weakenedby use.

The operation of this portion of my device is as follows: The spring 7must be first wound. In order to do this, the lever 45 is rocked to theposition indicated in full lines in Fig. 2. Then the counter-shaft 20 isto be moved inward to engage the gear-wheel 19 with the gear-wheel 18.When the parts are in this position, the lever 45 is to be moveddownward and engaged with a spring-keeper 51, mounted on the base of themachine. This movement of the lever will cause the portion 46 to engagewith the shaft 20 and also to engage against the outer side of thecollar 47, as indicated in dotted lines in Fig. 1, and the member 48 ofsaid lever will engage with the brake-lever 11 and force it outward torelieve its pressure against the flange 14. Now by turning the shaft 20by means of the crank 21 it is obvious that the shaft 17 will be rotatedand the motor-spring 7 will be wound and at this time the clutch-section39 will ride over the surface of the clutchsection 38 without impartingmotion thereto. After winding the spring as described the lever 45 is tobe released from the device 51, so that it may be moved upward by meansof a spring 52 to release the member 46 from the shaft 20 and the member48 from the lever 11. Then the shaft 20 is to be moved outward todisengage the gears 19 and 18. After completing a line or aportion of aline and it is desired to move the carriage to its position at the rightpressure applied upon the fingerpiece 29 will rock the lever 28downward, so that the upwardly-extended portion 27 thereof will drawthehook portion 24 of the lever 25 out of engagement with the shoulder 23011 the disk 22. The motor-spring 7 will then act to 1'0- tate the shaft17, and consequently rotate the pulley 3l,and through the medium of theband or strap 32 will draw the carriage to its right hand position. Asit reaches its right-hand position the shoe 44, carried by the carriage,will engage with the roller 43 and cause the lever 42 to rock, and thisrocking of the lever will cause the portion 40 to move the clutchsection38 and the pulleys upward on the shaft 17 until the tooth of the saidclutchsection 38 just clears the tooth of the clutchseetion 39. Then avery slight movement will cause the end of the tooth on the section 38to engage against the curved surface of z the elutch-section 39 at therear of its tooth, and then the type-writer may be operated in the usualmanner to print a line. In other words, when the point of the tooth onthe clutch-section 38 engages with the spirallydisposed surface of theclutch-section 39 the tooth will move around onsaid surface until thetwo teeth are again in engagement, which will be at the time thecarriage reaches its extreme left-hand position and ready to be returnedto its right-hand position. Of course at the completion of theright-hand movement vent the motor from running down should thefinger-piece 29 be inadvertently held In order to predown, I provide-thelever with a finger 25, that will come inlinewith 'shou"ld'er .-23- andstopthedis'k. 7

I willnowdescribe the means for rotating the impression-roller 6forline-spacing. 'Suspended from an end:pieceof the carriage: frame 5 isa bracket having a horizontally: disposed portion 53, towhich arearwardlyextended lever. 54 is pivoted, thefreeor rear end of saidlever 54 beingextended under: neath the track 4- and adapted to engagewith. a stop on said track. The lever 54 is held normally in"the-position indicated in full lines in Fig. 4 by means of a spring 56,se-;

cured atone end to the frame 5 and at the other end to anoutwardly-disposed portion of said lever '54.- Extendedfrom the lever54'at a'pointnear its pivot is a finger 57, adapted to engage with itsend in a slot 58, formed in a' shifter, here shown as a plate 59,"loosely mounted on and depending from'the shaft of the roller 6'betweenthe end of's'aid' roller and the bracket 53. "Pivotally con nected tothe plate 59 is a dog 60, having a tooth6l, adapted'to engage with theteethof a ratchet-wheel-62' on the: end of the roller, and it isheldyieldinglyin engagement with said ratchet-wheel' by means of aspring63. The dog hasaforwardly-extended arm 64, by means of whichritm'aybemoved downward out of engagement with the ratchet wheel when'it isdesired torrotate the roller backward, as is sometimes necessary. In theoperation of this device as the carriage nears itsextreme right handposition the lever 54 will engage with the part 55 on ,t he track 4, andthen as the carriage continues moving to the right the level-54 willberocked, so that itsfinger 57 Willrock the plate-59, and this rocking ofthe plate 59 will move the dog 60 to rotate the roller 6 the distance ofthe space between lines. carriage moves toward the left during theoperation of the type-w'riterthe spring 56v will return the lever 54 andthe "parts operated thereby to their normal positions. The ordinaryfinger-pieces are attached to the ends of the roller-shaft, so that saidrollershaft may be rotated backward when desired and the said roller maybe rotated independ ently of the mechanism for automatically doing thesame by means of the ordinary lever (36, operating the ordinary dog 67.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a type-writer, a carriage-shifter,.comprising aspring-motor, a shaft to which the inner end of said spring is attached,a gearwheel on said shaft, a pinion meshing with the gear-wheel, a shafton which said pinion is mounted, a disk mounted on said pinionshaft andhaving a tooth or shoulder, a pulley on said pinion-shaft, a connectionbetween said pulley and an arm depending from-the type-Writer carriage,a lever foren gaging with the shoulder of the disk, a key-lever for mov-"spring, substantially asspecified.

Of course as the ing said first-named lever o'utof engagementwiththeshoulder of-thedisk, and a brake for the motor-spring, thesaidbrake having connection with the. outerend of said motor- 2. In atype-writer,a carriage-shifting mech;

anis m comprising a spring-motor, locatedin the rear portion of the typewriter frame, a gear-wheel operated by said spring, a pinion meshingwith said 1 gear-wheel, a shaft on which the pinion is mounted, astop-disk attached to said pinion-shaft, a key-actuated lever engagingwith said .stopdisk, a pulley on thepiniojn-shaft, a connection betweensaid pulley and .an arm depending from the type+ writer carriage, aclutch-section carried by said pulley, a clutch-section on thepinionshaft and -adapted to engage with the firstnamedclutch-section,and means operated by the carriage for moving the first-namedclutchsection out of engagement with the other clutch-section,substantially as specified. 3., In atype-writer,a carriage-shiftingmechanism comprising a motor-spring, a shaft towhich the inner end ofsaid spring is attached, a gear-wheel on said shaft and havingadownwardly-extended annular flange, a brakelever engaging with saidflange, another lever pivoted to the'type-writer frame and having a linkconnection at one end with the brake lever and having its opposite endconnected to the outer end of the motor-spring, a pinion engaging with the gear-wheel operated by the motor-spring, a pulley on the shaft ofsaid pinion, 'a connection between said pulley and .a part extended fromthe type-writer carriage, a stop-disk secured to said pinion-shaft, and

a key-actuated lever having spring-yielding engagement with said disk,substantially'as specified.

.4. In atype-writer, a carriage-shifting de vice, comprising a spring, ashaft operated by said spring, a stop-disk on said shaft,"a keyactuatedlever yieldingly engaging with said disk, a pulley on said shaft, aflexible connection between said pulley and a part extended from thetype-writer carriage, and a take-up spring secured at one end to thetype-writer frame and at the other to the hub of the pulley,substantially as specified.

' 5. Ina type-writer, a carriage-shifting device, comprising aspring-motor, a brake -lever for said motor, a shaft driven by saidmotor and having connection with the type-writer carriage, a bevel-gearon said shaft, a horizontally-movable counter-shaft, a bevel-gear onsaid counter-shaft adapted for engagement with the first-namedbevel-gear and a lever having an upwardly-extended portion for engagingwith a collar on said counter-shaft and a downwardly-extended portionfor engaging with the brake-lever, to relieve its pressure on the motor,substantially as specified.

6. In a type-writer,a mechanism for shifting the carriage thereof,comprising a spring-motor, a shaft driven by said spring-motor, aholding-disk on said shaft, a key-actuated le ver engaging with saiddisk, a clutch-section attached to the shaft,a pulley loosely mounted onthe shaft, a clutch-section on said pulley for engaging with thefirst-named clutch-sec tion, a rock-shaft, an arm extended from saidrock-shaft and engaging with the movable section of the clutch, anangle-lever on said rock-shaft, a pulley carried in the free end of saidangle leveiga shoe onthe carriage adapted to engage with said pulley tomove the movable elutoh-section, and a connection between the pulley anda part extended from the carriage, substantially as specified.

7. In a type-wri ter,the combination with the impression-roller and thecarriage therefor, of a shifting-plate inounted on and depending from ashaft portion of the roller, a horizontally-swinging lever, a finger onsald lever adapted to engage in an opening in said shiftin g-plate, adog carried by said shifting-plate with which the horizontally-swinginglever is 2 adapted to engage and operate the dog, substantially asspecified.

JAMES MILO CRAMER;

Witnesses:

G. E. TILMAN,- J. M. HENRY.

